PartsTable
Technical Data Sheet
531-6985694-F202-3 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 BAND, seat_angle: 37.0 DEGREES FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END, special_features: LOW PRESSURE APPLICATION; TYPE A GROUP III END FITTING, nominal_thread_size: 0.750 INCHES FIRST END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-501-5074, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
531-6985694-F202-3
NSN: 4730-01-501-5074
FSC: 4730
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 BAND
seat_angle37.0 DEGREES FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
special_featuresLOW PRESSURE APPLICATION; TYPE A GROUP III END FITTING
nominal_thread_size0.750 INCHES FIRST END IN
end_item_identificationR.O. UNIT, PORT; WSD LOS ANGELES CLASS SSN (688)
media_for_which_designedWATER, SALT SINGLE RESPONSE
thread_series_designatorNPSH FIRST END
nondefinitive_spec/std_data20 SIZE
specification/standard_data81349-MIL-H-24136/3 GOVERNMENT SPECIFICATION
material_document_and_classificationAISI4140 ASSN STD SINGLE MATERIAL RESPONSE BAND
NSN4730-01-501-5074
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 531-6985694-F202-3 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.500 INCHES FIRST END IN
THREAD SERIES DESIGNATOR: NPSH FIRST END
MATERIAL: STEEL COMP 4140 BAND
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
MEDIA FOR WHICH DESIGNED: WATER, SALT SINGLE RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.500 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPSH FIRST END
MATERIALSTEEL COMP 4140 BAND
SPECIAL FEATURESLOW PRESSURE APPLICATION; TYPE A GROUP III END FITTING
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
PART NAME ASSIGNED BY CONTROLLING AGENCYFLANGE,STRAIGHT END
MEDIA FOR WHICH DESIGNEDWATER, SALT SINGLE RESPONSE
END ITEM IDENTIFICATIONR.O. UNIT, PORT; WSD LOS ANGELES CLASS SSN (688)
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 35
MIL-H-24136/3-20Interchangeable
interchangeable cross-reference
interchangeable
4280-20Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-24136/3Interchangeable
interchangeable cross-reference
interchangeable
375-190093-20Interchangeable
interchangeable cross-reference
interchangeable
H655-1503Interchangeable
interchangeable cross-reference
interchangeable
6985695Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 531-6985694-F202-3?
531-6985694-F202-3 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 531-6985694-F202-3?
There are 35 known substitutes for 531-6985694-F202-3: MIL-H-24136/3-20, 4280-20, MIL-DTL-24136/3 and 32 more. Substitute compatibility should be verified for your specific system.
Is 531-6985694-F202-3 still available?
531-6985694-F202-3 is currently cancelled.
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